Push-button pump type soap dispenser



n sept. 17, 1946. u. PALMER P 2,407,765

PUSH BUTTON PUMP TYPE SOAP DISPEN'SER A Filed May l0, 1945 /7 "lNvENroR Jol-1N FREDEmcK PALMER Patented Sept. 17, 1946I PUSH-BVUTTON PUMP TYPE SOAP DISPENSER John Frederick Palmer, Waukesha, Wis.

ApplicatOn May 10, 1945, Serial N0. 593,065

6 Claims. A1

This invention appertains to liquid dispensers and more particularly to a novel device for dispensing a measured quantity of liquid soap upon each operation thereof by a user.

One of the primary objects of my invention is to provide a liquid soap dispenser of the type embodying a supporting bracket and a bowl orA jar for the soap connected with the bracket and having a novel pump mechanism for delivering the soap from the bowl directly into the hand of the user.

Another salient object of my invention is to provide a novel pump mechanism for liquid soap dispensers in which the necessity of packing washers, gaskets and the like is eliminated, thereby insuring the effective operation of the pump at all times. i

A further object of my invention is to provide a novel pump mechanism for liquid soap dispensers in which the pump itself isliminersed at all times in the liquid soap and in which the operating mechanism therefore includes a horizontally disposed sliding plunger carried directly by the bracket for the bowl, the plunger being movable inward toward the support on which the bracket is secured, whereby loosening of the bracket on the support is prevented, and whereby all strain on the bowl is eliminated.

Another further object of my invention is to provide novel means for delivering the soap through the operating plunger and into the hand of the user whereby the soap can be obtained `by the operator with the use of one hand and with a direct inward push.

A still further object of my invention is to provide a novel means for lling the bowl or jar without necessitating the removal of the bowl or jar from the bracket, including a filling opening in the bracket and a novel locking closure plug for said opening. 1

A still further objectof my invention is to provide a liquid soap dispenser which` will be extremely durable and ecient in use, and one which can be placed upon the market at a reasonable cost. i

With these and other objects in view, the invention consists in the novel construction, arrangement `and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawing, in which drawingz' Figure l is a vertical sectional View through my improved liquid soap dispenser, the section being taken substantially on the line I-I of Figure 2,1ooking in the direction of the arrows.

Figure 2 is a sectional view taken at right angles to Figure 1 and substantially on the line 2 2 of Figure l looking in the direction of the arrows.

Figure 3 is a top plan view of my improved soap dispenser.

Figure 4 is a detail vertical sectional view taken on the line 4-4 of Figure 1, looking in the direction of the arrows and illustrating a partY of the bracket. Y Figure 5 is a fragmentary side elevational view of the upper end of the ,bowl or jar for the liquid soap and illustrating the novel lmeans employed for holding thebowl lin position on the bracket against accidental displacement, and unauthorized removal by mischievous personsl Figure 6 isa detail fragmentary horizontal sectional view taken on the line 6`6 of'Figufre 1, looking in the direction of theV arrows, also illustrating the means for detachably holding the bowl on the bracket against accidental displacement and removal by unauthorized persons', and Figure 7 is a detail vertical sectional view through the pump mechanism taken substantially on the line I-1 of Figure 1, looking in the direction of the arrows.

Referring to the drawing in detail, wherein similar reference characters designate corresponding parts throughout the several views,the letter D, generally indicates my novel soap dis#- penser. My soap dispenserDincludes a novel supporting bracket I0, for the liquid soap bowl or jar Il, and my novel pump mechanism I2.

The bracket I0 can be a casting or the like formed from any desired material possessing the necessary strength, and the same embodies a rear face plate I3 for connection with a wall or other suitable support S. This face plate I3 has formed therein keyhole slots I4 for the reception of fastening `elements I5 secured in the wall or other support S. The lower end of the face plate can be'provided with an opening I6 for the reception of a screw, nail or the like, I1, so that accidental displacement or removal of the bracket from the support S by unauthorized persons willbe prevented. Extending forwardly from the face plate I3 is the body portion I8 of the bracket, and this body portion has formed thereon and depending therefrom, an internally threaded sleeve I0 for the reception of the neck 20 of the bowl or jar IIL The thread'ZI formed on the neck of the bowl or jar Il can be interrupted as at 22 and a machine screw 23 can be threaded into the bracket and into the inter` rupted portion of thel thread 2l so as to prevent the accidental displacement, or removal by unauthorized persons, of the bowl Il from the bracket. The bracket has formed therein a vertically disposed filling opening 24 which cornmunicates with'the interior of the sleeve I9, and consequently with the bowl II. Hence, the bowl can be filled through this opening without the necessity of.-removing the bowlfromjthe bracket. A novel closure plug 25 is provided for this opens ing, and this plug will be later described in detail. rllhe body portion 'I8 of the bracket also.

has formed therein a centrally disposedhorizontal bore 26 which bisects the opening 24. This bore 26 opens out both through the front and rear of the body portion of the bracket. If de-` sired, the body portion I8 ofthe. bracket can be reinforced by side walls 21 which join with the face plate I3.

The pump mechanism I2 includes a horizontally disposed pump cylinderl 2G, and this cylinder is adapted to slideback and forth on the pump piston 28. vThis pump piston is carried by a supporting rod 3), the Lipper end of which is threaded intoor votherwise secured to the bod-y It of the bracket Ii! as at 3l. The cylinder ganas vformed in the end wall thereof a valve chamber Stand the cylinder has communication with the chamber by means of la port 33. yThe lower end ofv the chamber 32 has formed therein aninl-et opening 34 which is adapted to communicate with the interio-r of the bowll l.v `This inletis normally closed byA a ball `el'ieck valver. iConnected with the upper endof the chamben 32.?v is the pump tubing 36, and this tubing carries the pump cylinder 2li.

Slidablyvmounted within the bore 2t formed in the body portion nI8 of the bracket is the operating plunger 3l and the upper end of the pump tube 35 is threaded into or otherwise fastened'to said pump plunger, This pump plunger formed'axially therein a soap passageway 3B and this passageway communicates with the interior of the pump tubing 36. As illustrated, the forward end of the passageway 3S opens out through the front endy of the pump plunger and this end of the passageway Vis closed bya thumbpiece 39. Directly in rear of the thumb piece, the pump plunger carries an outlet nipple lil and this nipple also communicates with the soap passagewayy 38. Anexpansion spring 4I is employed for normally holding the operating plunger-3l forwardly and one end of the spring is connected with the'face plate I3 of the bracket It! and the other end of the spring is carried bysaid operating plunger.

In the use of my improved dispenser, the bowl II is filled `to its desired height withsoap and when a quantity of soap is desired. the operator pushes inwardly on the plunger v3l, carrying the pump' tubing Strand the cylinder 2S therewith. The cylinder.` 2 will slide directly on the piston 2li and anyliquid in the cylinder rwill be'forced up through the tubing 3e through t-hepassageway 33 of the plungerand o-ut'of the-nipple itil. Upon release ofthe plunger, the spring dgl will return the plunger and the cylinder to its normal position, creating a suction within the cylinder 2t. This will lift up the check valve and permit the sucking in of a quantity of soap. Obviously, upon the pushing of the plunger 37 again, the valve t5 will be, held on its seat and the liquid will again be forced up and out of the nipple.

The-length of the stroke of the plunger will pre-determine the amount of ,liquid that can be dispensedy in accordance with the. amount :that may be required. i' Y- Referring back to the filling plug 25, it will be noted that the same includes a depending sleeve 42 and this sleeve has formed therein on opposite sides thereof spiral bayonet slots 43. In placing the plug in position, the slots are placed over the plunger 3l and upon the turning of the filling plug, the plunger 3l will ride into the recessed ends 4t of the bayonet slots d3. This will lock the plug in position and' discourage the unauthorized removal thereof. The top wall of the filling plug can be provided with Spanner wrench openings 45 to facilitate the renewal thereof by an attendant.

From the foregoing description, it can be seen that I have provided an especially simple and durable liquid soap dispenser in which the necessity of packing gaskets and the like is entirely eliminated. Therefore, it can be seen that there are no parts subject to great wear or which will have to be removed at stated periods of time.

Changes in details may-be made without departingfrom the spirit or the scope of my.k invention, but` what I claim as newV is: y

1. A liquid dispenser comprising a bracket, an open mouthed r`bowl secured to .and depending from said bracket, an operating plunger slidably mounted in said bracket for horizontal movement back and forth toward and awayrfrornrtherear end of the bracket, a stationaryv pump piston carried by the bracket and disposed in the bowl adjacent to the lower end thereof, a pump cylinder slidably mounted on thepiston, said cylinder and piston being arranged in parallel relation to the plunger, an inlet'check valve for the cylinder, rigid pump vtubing connecting theV cylinder with the operatingplunger whereby upon movement of said plunger,.the cylinder will be moved therewith, said plunger having a passagewaycom- Y municatingwiththe, upper end ci the tube, and an outlet nipple 'carried by the plunger and communicating with vsaid passageway. Y

V2. -A liquid dispenser comprisingv a bracket, an opengmouthed bowl secured to and depending from ysaid bracket, an operating plunger slidably mounted in said bracket-for horizontal movement back 'and forth toward and away from the rear end of the bracket, a stationary pump piston carried by the bracket and disposed in the bowlf adjacent to the lowei1 `end thereof, a pump cylinder slidably mounted on the piston, said cylinder and piston being arranged in parallelY relation to the plunger, an inlet check valve for the cylinder, rigid pump tubing connecting the cylinder with the operating plunger wherebyl upon move ment of said plunger, the cylinder will be moved therewith, said plunger having va passagewayv communicating with the upper end of the tube,

an outlet nipple carried bythe plungery and com- Y municating with said passageway, and spring meansnormally holding the: operating plunger in a forward position. l

3. A liquid dispenser comprising a support' having a depending sleeve, a bowl'for liquid connected with said sleeve, an operating plunger slidably mounted in said support for movement in a'horizontal plane toward and away from the rear end of the support, said plunger having an axial passageway opening out adjacentto theV forward end thereof, a pump tube rigidly carried by said "plunger and communicating with vthe passageway, a depending rod secured to said support and extending into the bowl, a piston carried by thelower end of the rod, a cylinder slidably mounted onthe Distonand carried by the lower end of the tube, said cylinder having al valve chamber in the outer end wall thereof, said chamber having communication with the interior of the cylinder and an inlet port, a check valve for said inlet port, said tube communicating with the chamber, and spring means normally urging the operating plunger in one direction.

4. A liquid dispenser comprising a support having a depending sleeve, a bowl for liquid connected with said sleeve, an operating plunger slidably mounted in said support for movement in a horizontal plane toward and away from the rear end of the support, Said plunger having an axial passageway opening out adjacent to the forward end thereof, a pump tube rigidly carried by said plunger and communicating with the passageway, a depending rod secured to said support and extending into the bowl, a piston carried by the lower end of the rod, a cylinder slidably mounted on the piston and carried by the lower end ,of the tube, said cylinder having a valve chamber in the outer end wall thereof, said chamber having communication with the interior of the cylinder and an inlet port, a check valve for said inlet port, said tube communicating with the chamber, spring means normally urging the operating plunger in one direction, said support having a filling opening therein communicating with the sleeve and the bowl, and a removable plug for said filling opening.

5. In a liquid dispenser, a supporting bracket including a body portion and a depending sleeve thereon, a bowl for liquid detachably connected with said sleeve, said body portion having a vertical filling opening communicating with the sleeve and the bowl and a horizontally disposed bore bisecting said opening, an operating plunger slidably mounted in said bore and extending through said opening, having an axial passageway therein, opening out adjacent to the forward end of said plunger, a pump mechanism including a stationary pisto-n carried by the support, a cylinder slidably mounted thereon and a pump tube carrying said cylinder and rigidly connected with said plunger and communicating with the passageway, a closure plug for saidlling opening including a depending sleeve having spiral bayonet slots, said slots being adapted to receive and hook on said operating plunger.

6. A liquid dispenser comprising a support having a depending sleeve, a bowl for liquid connected with said sleeve, an operating plunger slidably mounted in said support for movement in a horizontal plane toward and away lfrom the rear end of the support, said plunger having an axial passageway opening out adjacent to the forward end thereof, a pump tube rigidly carried by said plunger and communicating with the passageway, a depending rod secured to said support and extending into the bowl, a piston carried by the lower end of the rod, a cylinder slidably mounted on the piston and carried by the lower end of the tube, said cylinder having a valve chamber in the outer end wall thereof, said chamber having communication with the interior of the cylinder and an inlet port, a check valve for said inlet port, said tube communicating with the chamber, spring means normally urging the operating plunger in one direction, said support having a lling opening therein communicating with the sleeve and the bowl, a removable plug for said lling opening, said bowl having a threaded connection with the support, the threads on the bowl being interrupted, and a removable screw carried by the support threaded into said support for movement into the in terrupted part of the thread. l

JOHN FREDERICK PALMER. 

